1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.kernel.messaging.sender;
24  
25  import com.liferay.portal.kernel.log.Log;
26  import com.liferay.portal.kernel.log.LogFactoryUtil;
27  import com.liferay.portal.kernel.messaging.DestinationNames;
28  import com.liferay.portal.kernel.messaging.Message;
29  import com.liferay.portal.kernel.messaging.MessageBus;
30  import com.liferay.portal.kernel.messaging.MessageBusException;
31  import com.liferay.portal.kernel.util.Validator;
32  import com.liferay.portal.kernel.uuid.PortalUUID;
33  
34  /**
35   * <a href="DefaultSynchronousMessageSender.java.html"><b><i>View Source</i></b>
36   * </a>
37   *
38   * @author Michael C. Han
39   */
40  public class DefaultSynchronousMessageSender
41      implements SynchronousMessageSender {
42  
43      public DefaultSynchronousMessageSender(
44          MessageBus messageBus, PortalUUID portalUUID, long timeout) {
45  
46          _messageBus = messageBus;
47          _portalUUID = portalUUID;
48          _timeout = timeout;
49      }
50  
51      public Object send(String destinationName, Message message)
52          throws MessageBusException {
53  
54          return send(destinationName, message, _timeout);
55      }
56  
57      public Object send(String destinationName, Message message, long timeout)
58          throws MessageBusException {
59  
60          if (!_messageBus.hasDestination(destinationName)) {
61              return null;
62          }
63  
64          message.setDestinationName(destinationName);
65  
66          String responseDestinationName = message.getResponseDestinationName();
67  
68          // Create a temporary destination if no response destination is
69          // configured
70  
71          if (Validator.isNull(responseDestinationName) ||
72              !_messageBus.hasDestination(responseDestinationName)) {
73  
74              if (_log.isDebugEnabled()) {
75                  _log.debug(
76                      "Response destination " + responseDestinationName +
77                          " is not configured");
78              }
79  
80              message.setResponseDestinationName(
81                  DestinationNames.MESSAGE_BUS_DEFAULT_RESPONSE);
82          }
83  
84          String responseId = _portalUUID.generate();
85  
86          message.setResponseId(responseId);
87  
88          SynchronousMessageListener synchronousMessageListener =
89              new SynchronousMessageListener(_messageBus, message, timeout);
90  
91          return synchronousMessageListener.send();
92      }
93  
94      /**
95       * @deprecated
96       */
97      public Object sendMessage(String destination, Message message)
98          throws MessageBusException {
99  
100         return send(destination, message);
101     }
102 
103     /**
104      * @deprecated
105      */
106     public Object sendMessage(String destination, Message message, long timeout)
107         throws MessageBusException {
108 
109         return send(destination, message, timeout);
110     }
111 
112     private static Log _log =
113         LogFactoryUtil.getLog(DefaultSynchronousMessageSender.class);
114 
115     private MessageBus _messageBus;
116     private PortalUUID _portalUUID;
117     private long _timeout;
118 
119 }